Answer:
C
Winston Churchill.
Step-by-step explanation:
Wilson passed away in the 1920s.
Franz Josef was head of the AustroHungarian empire from about 1825 to 1850. He wasn't alive during WWII.
Paul von Hindenburg was the head of the German Army during WWI and was elected head of the Weirmer Republic in 1925. He died (1934) before the beginning of WWII.